Grade 4 Qualitative Filter Papers Dia 125mm
PKR0.00
- Brands Whatman
- Product Code: 1004-125
- Availability: In Stock
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- Cylinders
- Equipments
- Filter Papers/Membrane Filters
- Glass Wear
- Kits & Reagents
- Meters
- pH/TDS/Cond./DO/Salinity
- Plastic Ware
- Refractometers
- Strips
- Syringe Filters
- Thermometer & humidity meter
- Ultrasonic Cleaners
| Parameter | Grade 4 Qualitative Filter Paper Standard Grade, circle, 27 mm |
|---|---|
| Application | Used when high flow rates in air pollution monitoring are required and the collection of fine particles is not critical. |
| Diameter | 27 mm |
| Grade | Grade 4 |
| Grade Type | Standard |
| Material | Cellulose |
| Nominal Ash Content1 | 0.06% |
| Nominal air flow rate | 4 s/100 ml/in² |
| Nominal basis weight | 92 g/m² |
| Nominal thickness | 210 µm |
| Typical Particle Retention in Liquid2 | 25 µm |
| Typical Trace Element Levels | Aluminium 3.6 µg/g Antimony <0.5 µg/g Arsenic <0.5 µg/g Barium <0.5 µg/g Boron <1 µg/g Calcium 27.5 µg/g Chromium 1 µg/g Copper 0.9 µg/g Iron 13.7 µg/g Lead <0.5 µg/g Magnesium 21 µg/g Manganese <0.5 µg/g Mercury <0.5 µg/g Potassium 6.2 µg/g Silicon 8.8 µg/g Sodium 32.3 µg/g Zinc 58.3 µg/g |
| Typical water flow rate3 | 247 ml/min |
| Format | Circles |
| Dimensions | Ø 27 mm |